baber/WOPTO huggingface dataset:
Patent GB-659803-A (GB)
Title: Improvements relating to apparatus for measuring blind cavities
Inventor: CLAY WILLIAM EDWARD REGINALD
IPC: G01B5/12
Filed: 1946-11-28
Abstract: 659,803. Gauging-apparatus. ROLLSROYCE, Ltd. Nov. 28, 1946, No. 35375. [Class 106 (ii)] Apparatus for measuring blind cavities, such as 25, in an unfinished hollow valve 17, comprises a stem 16 extending through the restricted access to the cavity and adapted to locate the latter, and a transversely-movable feeler 24 on the stem arranged to actuate indicating means, this feeler being so mounted that it can be brought into alignment with the stem to permit its entry through the restricted access to the cavity. On the base 10 is formed a boss 13 having a shoulder 14 to locate the base 15 of the vertical gauge stem 16, the latter being slotted longitudinally to accommodate a lever 19 pivoted at 20 to the stem. The lower end of the lever 19 has a rounded lug 21 bearing on the operating plunger 22 of a dial gauge 12 mounted on the base 10. The feeler 24 comprises two parts riveted together and slotted to fit over a round portion on the upper end of the lever 19; it is pivoted to the lever on a pin 27 around which is a coil-spring arranged to urge the feeler into a position at right-angles to the axis of the lever 19, but allowing the feeler to be brought into alignment with this axis. When the valve 17, or other object to be gauged, is placed over the stem 16, which is approximately the same diameter as the restricted access in the valve, the feeler 24 is urged into gauging position in the cavity 25 by the plunger 22 of the dial gauge, and by rotating the valve on the stem 16 the feeler will follow the contour of the cavity. Specification 659,857, [Group XXII], is referred to.
Patent GB-302229-A (GB)
IPC: B41F33/08
Filed: 1928-11-30
Abstract: 302,229. Maschinenfabrik Augsburg- Niirnberg Akt.-Ges. Dec. 12, 1927, [Convention date]. Tripping-arrangements. - In a multi-colour printing - machine, the printing-couples are tripped in succession by a single controlling device operated by a cam on the shaft of one unit of a printing-couple and controlled by a trip lever. As shown, the printing-cylinders I, II, are adapted to be tripped in succession by an oscillating pawl 3 mounted on a lever 8 which is oscillated on a shaft 12 by means of a cam 5 on the shaft of an ,impression cylinder III and a lever 6 and link 7. The pawl 3 is. under the control of a guide 14 on a lever arm 16, which is operated by a rod 19, lever 18, and a double pedal lever 17. When this lever 17 is moved to the position shown in Fig. 1, the pawl 3 is moved clockwise, and its operating end b is moved into such a position that it can engage in recesses on segments which are integral respectively with a lever arm 10 fixed to the shaft 12, and a lever arm 11 freely mounted on shaft 12. The segment integral with arm 11 is formed with a recess of greater depth than the recess in the segment on arm 10, but also with a recess of the same depth. At the commencement of the tripping operation the end b of pawl 3 engages a nose d at the end of the segmental recess on arm 10, but can not move into the deep recess on the other segment. As the arm 8 moves clockwise on shaft 12, the a,rm 10 is moved clockwise by pawl 3 and printing-cylinder 1 is tripped by means of a link 20 connected to the eccentric bearings of cylinder 1. During this action the arm 11 is moved slightly by the engagement of pawl 3 with the nose h at the end of the shallow recess in segment N. The pawl 3 is then moved in the reverse direction, and at the end of this movement it drops into the deep recess, and engages a nose f on the segment 11. When the arm 8 again moves clockwise it moves the arm 11 with it, and by means of a link 21, lever 22, and link 24, the eccentric bearings of cylinder II are rotated to trip the cylinder. The printing-cylinders are restored to printing position by depressing the left-hand side of the pedal lever 17, when the end a of the pawl is brought into operation, and restores the levers 11, 10, in sequence to positions corresponding to the printing positions of the couples.
Patent GB-1353764-A (GB)
Title: Production of graphite fibres
IPC: D01F9/12
Filed: 1971-07-28
Abstract: 1353764 Graphite fibre yarn KUREHA KAGAKU KOGYO KK 28 July 1971 [28 July 1970] 35388/71 Heading C1A Graphite fibre yarn is made by twisting together carbon fibres having a carbon content of more than 90% by weight, a tensile strength of at least 7 T/cm<SP>2</SP> and a substantially circular cross-section so that the twisted yarn and the average tensile strength of the filaments constituting the twisted yarn is in the range from 0À03 to 0À5 and heat-treating the twisted yarn at a temperature of at least 2,000 C. in an inert atmosphere while imparting a tensile stress of at least 0À5 T/cm<SP>2</SP>. Preferably the elongation at break of the filaments is about 0À9%. The carbon fibres may be made from (1) ethylene decomposition products, (2) tar from high temperature naphtha cracking, (3) reaction product of heavy anthracene oil and air, (4) petroleum pitch, (5) chloroform extract of coal pitch, (6) distilled bottom oil produced by partial hydrogenation of tar obtained from crude petroleum cracked in air containing NO 2 , (7) pyrolysis of polyvinyl chloride at 405 C. in an inactive gas and (8) product obtained by heavying 45 parts of phenanthrene and 55 parts by weight of chrysene in presence of 10% AlCl 3  catalyst. In the final product the fibres are mutually compressed from their initial circular shape to hexagonal or other polygonal shapes.
Patent GB-1278256-A (GB)
Title: Improved folder for production of signatures
Inventor: TIMSON ERNEST ARTHUR
IPC: B65H45/22
Filed: 1968-07-25
Abstract: 1278256 Folding and delivering paper; cutting and gumming apparatus TIMSONS Ltd 8 Sept 1969 [25 July 1968] 35444/68 Heading B8R A plurality of superposed paper webs R are drawn by rollers 1 and 2 over a longitudinal folding plate 3, cut transversely at 4 to form individual signatures S and then passed to a delivery device. Gumming apparatus.-Gum is applied along the middle line of each web before it comes into contact with an adjacent web, by pipes 9 supplied from gum troughs 11. In this manner signatures S are provided with gummed spines. Associating apparatus.-Paper webs R may have been produced by longitudinally slitting wider webs, the slit portions being collated by passage around diagonally disposed diverting bars or rollers (not shown). Folding apparatus.-The folding plate 3 may be pivotable along line 3a to permit variation of the angle at which the face of the plate is set. Pinch rollers 12 and 13 complete the fold. Cutting apparatus.-The superposed and folded webs are severed transversely by a rotary knife 5 which co-operates periodically with a fixed knife 4. Alternatively, the cutting may be effected by a pair of co-operable cylinders furnished respectively with one or more cutting blocks and a knife. Delivery apparatus.-The signatures are gripped between fast tapes 15 and 16, moved into the horizontal plane around curve 14 and forwarded to slower moving tapes 18 and 19. Tape 18 co-operates with a trap roller 17 which assists formation of an overlapping stream. The signatures are stacked on conveyer 21 against retaining member 22, which member, after delivery of a predetermined number of signatures is pivoted (dotted position) to release the stack for further delivery. Pivotable fingers 25 hold back subsequent signatures whilst a completed stack is removed. Jogger plates 23 align the stack.
Patent GB-843583-A (GB)
Title: Improvements in or relating to velocity-modulation amplifiers
IPC: H01J25/36
Filed: 1958-11-05
Abstract: 843,583. Velocity-modulated tubes. SIEMENS & HALSKE A. G. Nov. 5, 1958 [Nov. 6, 1957], No. 35544/58. Class 39(1). A velocity-modulation amplifier comprises an input circuit tuned to a frequency f1, and interaction circuit for applying to the beam a locally generated signal having a frequency f2 whereby a wave component having a frequency (f2-f1) is produced and amplified as a result of the interaction, and an output circuit tuned to the frequency f1. It is explained, by reference to the Doppler effect that by amplifying the wave component (f2-f1) all the other wave components, including the wave component which represents the input signal, will also be amplified. Preferably f2 < f1 and f1 > the frequency of the amplification range of the tube. In the embodiment shown, the input frequency f1 is applied to the cavity resonator 3, the local signal f2 is applied to a helix 6 which is terminated by a matched member 9 and the output at frequency f1 is taken off by cavity resonator 10. In modifications, the helix 6 may be backward wave structure which generates the local signal, the input resonator and the helix may be combined to form a single system, in which case the input system is designed to have a suitably wide band-width, the input and output resonators may be replaced by delay lines, or the helix 6 may be replaced by an electron beam travelling in the same or opposite direction to that of the main beam.
Patent GB-916997-A (GB)
Title: Improvements in or relating to the method of preparing resin coated sand
Inventor: PARKES ERIC
IPC: B22C1/22
Filed: 1959-10-21
Abstract: Resin-coated sand is prepared by mixing a phenol or urea, with an aldehyde, e.g. formalin, in known resin forming proportions in the presence of the sand to be coated and of a suitable acid, e.g. HCl, or alkali, and heating the mix to, e.g. 230 DEG F., until the mix reaches a free flowing condition.  A wax and/or hexamethylenetetramine may be added to the reaction mixture after the majority of the H2O produced has been lost.  The wax may be paraffin or synthetic, e.g. substituted polyamide of stearic acid, a polyethylene, methylene bisstearamide or Ca, Li or Zn stearate.  The reaction can be performed in a drum provided with a helical screw. The treated sand is suitable for forming cores and moulds for use in foundries.  Specification 753,164 is referred to.
Patent GB-508080-A (GB)
Title: Manufacture of vinylmethyl ketone
IPC: C07C45/26
Filed: 1937-12-23
Abstract: 508,080. Catalytic apparatus. GROVES, W. W. (I. G. Farbenindustrie Akt.- Ges.) Dec. 23, 1937, No. 35627. [Class 1 (i)] [Also in Group IV] Vinylmethyl ketone is prepared continuously from vinylacetylene and water in the presence of a catalyst by causing a liquid containing the catalyst and vinylacetylene to flow in circuit in countercurrent, e.g. in a counter-current trickling apparatus, during which operation vinylmethyl ketone and steam are continuously withdrawn and a new quantity of catalyst and water is continuously added, whilst part of the catalyst together with the resinous polymerisate formed are continuously removed. In apparatus described:-vinylacetylene passes from pump 2 into column 3 charged with filling bodies and the catalyst, e.g. a mercury contact, where it is condensed with water; vinylmethyl ketone, excess vinylacetylene and steam pass over to the condensing plant 5 and then to a film evaporator 6, heated to 40-45‹ C., which retains about 5-8 per eent of the vinylacetylene, the remainder returning to the pump; in a second cycle, liquid containing the catalyst is pumped via the heating coil. 9 into column 3 and is recirculated via 13. An inert gas, e.g. nitrogen may be maintained in the apparatus.
Patent GB-471143-A (GB)
Title: Production of high vacuum
IPC: H01J7/18
Filed: 1936-12-30
Abstract: 471,143. Obtaining high vacua. KEMET LABORATORIES CO., Inc. Dec. 30, 1936, No. 35687. Convention date, Feb. 11. [Class 8 (i)] Gettering material 12 for thermionic devices &c. is secured in a trough in a tab or strip 10 in thermal contact, the strip being located below the operating elements and the trough extending from the edge or edges to the centre of the strip. The strip is heated progressively towards the centre, vaporizing successive portions of gettering material.
Patent GB-615302-A (GB)
Title: Improvements in or relating to insect traps
IPC: A01M1/18
Filed: 1946-12-02
Abstract: An insect trap comprises a substratum covered with a glue whose adhesive power is such that the time required to remove a body with a circular, flat, glassy undersurface of 30 mms. diameter from the glue by means of an effective pull of 20 gms. at 20 DEG  C. is between 10 and 30 seconds.  The mixture mainly consists of chlorinated paraffins, with a small percentage of aliphatic hydrocarbons and a waterproofing agent added.
Patent GB-1241005-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/26
Filed: 1968-07-26
Abstract: 1,241,005. Knitting-machines. E. MAYER [trading as MAYER & CIE]. 26 July, 1968 [2 Aug., 1967], No. 35725/68. Heading D1C. A hook 23 is provided attached to levers 11, 15 pivotally mounted within the cylinder of a superpose-cylinder machine the levers being under the control of cams 17, 21 and followers 14, 19 such that the hook of the housing being projected receives a composite motion causing it to swing down and be withdrawn within the needle cylinder simultaneously engaging and drawing the yarn from an operative yarn guide within the needle circle and such that it is taken and knitted by the needles.
Patent GB-488194-A (GB)
Title: An improved feed hopper for use in connexion with pulverized fuel plants
IPC: B65G65/44
Filed: 1936-12-30
Abstract: 488,194. Delivering material from hoppers. WATSON, J., and LAMB, H. T. Dec. 30, 1936, No. 35742. [Class 78 (i)] A hopper is pivoted so as to move relatively to its fixed discharge shoot or passage and a flexible connection is provided-between them to permit this movement and also to exert an aerating pumping movement on the material. In the form shown this mounting is combined with means which impart both oscillations and impacts to the hopper, the degree of oscillation and force of impact preferably being variable over a large range. The hopper 3 is pivoted eccentrically at 4 and is fitted with two lugs 8, 11 of which 8 carries a screw-adjusted member 9 adapted to strike a frame member 10, while 11 contacts with a screw-adjusted member 12 on a pivoted lever set at right-angles to the plane of the paper and reciprocated by an eccentric 17. Normally the raising of the lever causes the member 12 to impart an impact to the member 11 and then raise the latter to oscillate the hopper. On the return stroke the member 9 strikes the frame member 10 and imparts a second impact to the hopper. By setting the members 9, 12 the apparatus can be arranged to give neither oscillation or impact, oscillation without impact, or combined oscillation and impact in any desired proportion. The rubber or other flexible connection 24 between the hoppers and the discharge passage 23 acts similarly to a pair of bellows as the hopper rises and falls and exerts an aerating pumping action on the material. A sliding valve 25 controls the exit to a delivery worm 26 which is driven by friction gearing 27, 30 and delivers to an air-blast conduit 21.
Patent GB-1395849-A (GB)
Title: Printer
IPC: B41J1/34
Filed: 1973-07-26
Abstract: 1395849 Selective printing INTERNATIONAL BUSINESS MACHINES CORP 26 July 1973 [28 Aug 1972] 35771/73 Heading B6F A printer comprises a print drum 19 having a cylindrical wall 41 of flexible material bearing type elements 39, and a print hammer 21 which strikes the internal surface of the wall 41 to deform the wall outwardly and strike a selected element 39 against record material 13. The print drum and print hammer are mounted on a print carriage 17 for movement along a print line. The print carriage is driven by a leadscrew 53, the print drum being keyed to a slot 55 therein for rotation with the screw while a half-nut 99 engages the thread of the lead-screw to advance the carriage. The half-nut 99 is held against the screw-thread by electromagnet 81. The carriage is returned to the beginning of a line under bias of a spring 149 by releasing the half-nut 99 from the screw-thread by deenergizing the electromagnet 81. At the line start position, a projection 167 on the carriage engages a lever arm 165 to actuate a line feed pawl. Two hammers may be located within the drum 41 to print on separate record media (Fig. 6, not shown). The drum 41 can be released from the carriage by disengaging a latch 101 from a groove 107.
Patent GB-805115-A (GB)
Title: Process for polymerizing perfluorinated monomers
IPC: C08F214/26
Filed: 1956-11-22
Abstract: Perfluorinated monomers, particularly tetrafluoroethylene, are polymerized or copolymerized in an aqueous medium by a process which comprises adding from 0.01 to 10 mol. per cent of the monomer of hydrogen, methane, ethane or a saturated fluorinated hydrocarbon having not more than two carbon atoms and at least one hydrogen atom, such as monofluoromethane, difluoromethane, trifluoromethane and difluoroethane, to the polymerization mixture, the quantity of the said added compound being from 0.01 to 0.05 mol. per cent when the compound contains six hydrogen atoms per molecule, from 0.01 to 0.5 mol. per cent when the compound contains less than six and more than three hydrogen atoms per molecule, from 0.01 to 2.5 mol. per cent when the compound contains less than four hydrogen atoms per molecule, but more than one hydrogen atom per molecule, and from 0.01 to 10 mol. per cent when the compound contains one hydrogen atom per molecule.  The aqueous medium may also contain initiators such as ammonium persulphate, disuccinic acid peroxide and tertiary butyl peroxide, redox initiators such as sodium bisulphite with ferricitrophosphates, dispersing agents such as ammonium dodecafluoroheptanoate and ammonium perfluorocaprylate and anti-coagulants such as mineral oils or paraffin waxes.  From 5 to 20 parts per million of iron may also be added.  The process may be used to prepare copolymers of tetrafluorethylene with ethylene, hexafluoropropylene, perfluorobutene, chlorotrifluoroethylene, vinyl fluoride and vinylidene fluoride.  Specifications 583,874, [Group IV], 589,923, [Group III], 631,570 and 689,400 are referred to.
Patent GB-1147403-A (GB)
Title: Sulphonamides
IPC: C07C301/00
Filed: 1967-08-04
Abstract: 1,147,403. Sulphonyl-ureas and related oxazolidinones. F. HOFFMANN-LA ROCHE & CO. A.G. 4 Aug., 1967 [8 Aug.. 1966], No. 35845/67. Heading C2C. Novel compounds of the general formula, X-NHCONHSO 2 Y and of the general formula wherein X represents a 2-(OXO or hydroxy)- cyclohexyl or 2-(OXO or hydroxy)-cyclopentyl group, Y represents a phenyl group which may be substituted by one or more amino, halo, alkyl, alkoxy, alkylthio, acyl, acylamino, diacylamido, alkoxy-substituted benzamidoethyl, halo-substituted benzamido-ethyl and/or alkoxy-halo-substituted benzamido-ethyl substituents or Y is a nitrogen-linked 5- or 6- membered nitrogen - containing heterocyclic group and X<SP>2</SP> is a divalent radical derived from a 2-hydroxy-cyclohexyl or 2-hydroxycyclopentyl group by removal of the hydroxy group, are prepared by the interaction of a compound of genera] formula, and either a sulphonyl carbamic acid' HOOC.NHSO 2 Y, or a sulphonyl isocyanate, YSO 2 NCO, thus affording the novel cyclic compounds illustrated above and when either of the cyclic compounds illustrated above are treated with alkali the novel compounds, X.NHCONHSO 2 Y, result. These latter compounds are also prepared: (a) by reacting a reactive derivative of a carbamic acid Y.SO 2 NH.COOH, or a sulphonyl isocyanate, Y.SO 2 .NCO, with 2-amino-cyclohexanol, 2- amino-cyclohexanone, 2-amino-cyclopentanol or 2 - amino - cyclopentanone or (b) by reacting a compound of the general formula, X<SP>1</SP>NH.CONHSO 2 Y, wherein X<SP>1</SP> is a 2-hydroxycyclohexyl or 2-hydroxy-cyclopentyl group which has been acylated at the hydroxy group with the carbamic acid, Y.SO 2 NH.COOH, with 2-amino-cyclohexanol or 2-amino-cyclopentanol. In addition, if desired, ring-located keto groups may be reduced and hydroxy groups oxidized. N - (4 - Chlorobenzenesulphonyl) - 3,5 - dimethylpyrazole - (1) - carboxamide is obtained by the interaction of 3,5-dimethyl pyrazole and 4-chloro-benzenesulphonyl-isocyanate Pharmaceutical preparations having hypoglycaemic action contain as active ingredient the above novel compounds and may be administered orally.
Patent GB-943514-A (GB)
Title: Improvements in and relating to means for producing an electric signal in response to the speeds of moving objects
Inventor: GOSLING JOHN CEDRIC
IPC: G01P3/58
Filed: 1961-10-05
Abstract: 943, 514. Electric analogue computers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 13, 1962 [Oct. 5, 1961], No. 35911/61. Heading G4G. [Also in Division G1] Apparatus for measuring the ratio of two speeds comprises two tachogenerators TG1, TG2 (Fig. 2), each producing a D.C. output voltage proportional to one of the speeds, which is automatically balanced against the voltage tapped off from a linear potentiometer 1 (Fig. 1), the slider 3 being ganged with the slider 4 of a log-wound potentiometer 2, giving an output signal which is proportional to the logarithm of the speed, and the difference between the two output signals is fed to a meter 13 with an anti-log scale, which thus indicates the ratio of the two speeds.
Patent GB-1035736-A (GB)
Title: Improvements in and relating to a volt ampere measuring circuit
Inventor: GUILDFORD LESLIE HENRY
IPC: G01R21/00
Filed: 1964-09-02
Abstract: 1,035,736. Electric analogue calculating. MULLARD Ltd. May 11, 1965 [Sept. 2, 1964], No. 35918/64. Heading H4G. [Also in Division G1] In a volt-ampere measuring circuit which may be used for determining wattage, an A.C. voltage a is applied at 4 to the primary of a transformer T1 which has two series-connected secondaries 2 and 3. The A.C. current is applied at the terminals 9 to produce a voltage b across a resistor 7 connected between the mid point of the windings 2 and 3 and the source electrodes of two insulated gate field effect transistors M.O.S.T.1 and M.O.S.T.2. The end of the resistor is also connected via a tapped potentiometer 8 to the free ends of the windings, which are connected to the gate electrodes of the field effect transistors. Thus voltages (<a>/2 + b) and (<a>/2 b) are applied to the gate electrodes of M.O.S.T.1 and M.O.S.T.2 respectively. The drain electrodes are supplied from a line 11 via the split primary of transformer T2, and in the two halves of this primary appear currents proportional to (<a>/2 + b)<2> and (<a>/2- b)<2>. In the secondary of this transformer therefore appears a voltage proportional to the difference between these two currents, i.e. to ab, and this is rectified and smoothed before being applied to a meter connected at 16. The diodes 5, 6, 14, 15 in the circuit ensure that individual parts of the circuit respond only in the appropriate input half cycles. Modifications to enable the circuit to be used with A.C. inputs and with asymmetrical inputs are suggested.